This past year contained a number of significant developments in litigation involving biologics and biosimilars. The following is a recap of the top three legal developments that we covered on the Big Molecule Watch last year.
As we head into what is anticipated to be a strong year for biopharma dealmaking, we look back at some of the biggest deals in 2025 that focus on biologics and biosimilars.
Antibody Therapy Deals
Novartis acquires Avidity Biosciences
On
On November 27, 2025, Celltrion announced that Health Canada approved EYDENZELT® (aflibercept-boav), a biosimilar referencing Regeneron’s EYLEA® (aflibercept), in both vial and pre-filled syringe form, to treat all indications approved for EYLEA®. EYDENZELT® is Celltrion’s first biologic product approved in
On December 1, 2025, Sun Pharmaceutical Industries Ltd. (“Sun Pharma”) announced the launch of ILUMYA® (tildrakizumab-asmn) in India. ILUMYA® is a humanized monoclonal antibody injection indicated for the treatment of adults with moderate-to-severe plaque psoriasis who are candidates for systemic
On December 22, 2025, the FDA approved mAbxience and Amneal’s Biologics Licensing Applications (BLAs) for BONCRESA (denosumab-mobz) and OZILTUS (denosumab-mobz), biosimilars referencing Amgen’s PROLIA® (denosumab) and XGEVA® (denosumab), respectively. Under Amneal’s partnership with mAbxience, mAbxience is responsible for development and
On December 13, 2025, Biocon Biologics Ltd. (“Biocon”) and Regeneron Pharmaceuticals, Inc. (“Regeneron”) entered into a license and settlement agreement to dismiss all pending claims in the parties’ disputes over Biocon’s aflibercept biosimilar, YESAFILI® (aflibercept-jbvf) in Europe and the rest
As we have previously reported, a group of health insurers and health insurance administrators (collectively, “CareFirst”) filed a class action complaint in 2023 against Johnson & Johnson and Janssen Biotech, Inc. (collectively, J&J), alleging multiple violations of federal and
On December 11, 2025, Regeneron filed a Memorandum in Support of Its Motion to Bifurcate and Stay Amgen’s Antitrust Claims in the ongoing aflibercept patent litigation in the U.S. District Court for the Northern District of West Virginia.
As we
On December 6, 2025, Vertex Pharmaceuticals Inc. (“Vertex”) announced data from several studies demonstrating the clinical benefits of CASGEVY® (exagamglogene autotemcel), including, for the first time, clinical data from studies in children ages 5-11 years. CASGEVY® is a non-viral, ex-vivo
On December 3, 2025, Celltrion announced that the FDA has approved a new dose of OMLYCLO (omalizumab-igec), the first and only biosimilar designated as interchangeable with Genentech and Novartis’s XOLAIR (omalizumab). The FDA approved a 300 mg/2mL solution of OMLYCLO
